Biocontrols
New” crop pests and diseases regularly cause concern to greenhouse growers.
Clean cuttings, young plants or plugs… this has been a discussion point for many years in our industry.
OMAFRA’s Grower Notes was published as a hard copy newsletter mailed to Ontario growers from the 1980s through until March 1997.
Feb. 21, 2011, Ames, Iowa – Becker Underwood, Inc. has launched its new beneficial nematodes blog, Nematode News.
Broad mites, or Polyphagotarsonemus latus, can be a serious pest of greenhouse peppers and a wide range of greenhouse ornamental plants including: gerbera, African violet, cyclamen, begonias, impatiens, verbena and gloxinia.
What impact will climate change have on biological control communities?
That’s the question Jessica Sparkes, a Master’s student at the University of Windsor, is helping tackle with her research project at the Greenhouse and Processing Crops Research Centre at Harrow, Ont.
The reasons for using biological pest control are numerous and include, (a) the absence of a re-entry interval (REI) or pre-harvest interval (PHI), (b) no requirement for an applicator licence, (c) no phytotoxicity to the crop, and, of course, (d) it is part of sustainable or “green” growing.
Biological control is increasingly being successfully used by growers to manage pests and diseases in greenhouse floriculture crops.
April 22, 2010, London, England – Bees see the world almost five times faster than humans, according to new research from scientists at Queen Mary, University of London.
WEB EXCLUSIVE

Why bees are such super pollinators
Bees see the world almost five times faster than humans, according to new research from scientists at Queen Mary, University of London.
March 22, 2010, Guelph, Ont. – If you wanted to build better beehives or improve crop pollination, you'd probably talk to beekeepers and biologists. But mathematicians? At the University of Guelph, experts in bees and numbers are working together on studies of hive design, pollination webs and disease transmission.
WEB EXCLUSIVE

U of G using math
to study bees

If you wanted to build better beehives or improve crop pollination, you'd probably talk to beekeepers and biologists. But mathematicians? At the University of Guelph, experts in bees and numbers are working together on studies of hive design, pollination webs and disease transmission.
Insect pathogenic nematodes are finding an increasingly important place in the pest management programs of many greenhouse growers. Available and recommended for many years to control fungus gnats, they have recently also been used as part of a pest management program for thrips.
Greenhouse pepper growers are very fortunate to have several biological control agents that are commercially available for management of western flower thrips that infest greenhouse peppers each year.
Bumblebees (Bombus impatiens Cresson) (Figure 1) have become increasingly common in Canadian vegetable greenhouses as most growers rely on them to provide supplemental pollination. Tomatoes and sweet peppers are self-pollinating, but supplemental pollination results in larger, more attractive fruit. When a bumblebee colony is placed in the greenhouse, female worker bees begin to collect pollen to feed to the developing larvae. More worker bees then emerge, resulting in further pollen collection. Therefore, successful pollination is partially dependent on the bees’ ability to produce large numbers of workers to forage.

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